Cummins/Onan CFP11E — Engine Oil and Filter Change
Maintenance · Engine oil system
For the Cummins/Onan CFP11E, from the Cummins/Onan operator's manual.
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Before you start
- Avoid direct skin contact with hot/used oil - can be carcinogenic
Procedure
- Operate the engine until coolant temperature reaches 70 °C (158 °F), then shut off.
- Place a container under the oil pan drain plug.
- Remove the oil drain plug and drain the oil.
- Remove the oil filter using a filter wrench; discard the O-ring seal.
- Apply a light film of 15W-40 oil to the replacement filter gasket.
- Fill the new filter with 15W-40 multi-viscosity oil before installing.
- Screw filter canister on until gasket is snug, then tighten an additional 1/4 turn.
- Check and clean oil pan drain plug threads; install plug and torque per Torque Tables.
- Fill the engine with clean 15W-40 oil at the fill port.
- Restart the engine, run 1-2 minutes, then stop.
- Wait approximately fifteen minutes, recheck oil level, and add oil to the H mark as necessary.
Tools required
- filter wrench Amazon
Tool links are Amazon searches (affiliate links); manufacturer special tools may only be available from a dealer.
Specs & values
- 1/4 turn after gasket contact
Source: Cummins/Onan operator's manual. Steps and values are as documented; always cross-check against the official manual and any later revisions for your exact serial number before servicing.